\begin{table}[H] \centering
\newcolumntype{R}{>{\raggedleft\arraybackslash}X}
\newcolumntype{L}{>{\raggedright\arraybackslash}X}
\newcolumntype{C}{>{\centering\arraybackslash}X}

\caption{Robustness checks: General index}
\label{tab:robustness_checks_general_chix}
\begin{tabularx}{\linewidth}{p{9.8cm} p{2cm} p{2cm} p{2cm}}

\toprule
{Robustness check}&{Est.}&{SE}&{p-val.} \tabularnewline
\midrule \addlinespace[\belowrulesep]
Baseline&0.276***&(0.105)&[0.004] \tabularnewline
With region and decade FE&0.265***&(0.099)&[0.004] \tabularnewline
Trimming instead of winsorizing&0.275***&(0.098)&[0.003] \tabularnewline
Winsorizing: 1st/99th percentiles&0.222**&(0.096)&[0.013] \tabularnewline
Winsorizing: 5th/95th percentiles&0.271***&(0.105)&[0.005] \tabularnewline
3 post-election years&0.259***&(0.101)&[0.006] \tabularnewline
5 post-election years&0.293***&(0.107)&[0.003] \tabularnewline
7 post-election years&0.318***&(0.110)&[0.002] \tabularnewline
10 post-election years&0.318***&(0.110)&[0.001] \tabularnewline
With year 0 in the post-election period&0.253***&(0.102)&[0.007] \tabularnewline
Twice the MSE-optimal bandwidth&0.219***&(0.094)&[0.003] \tabularnewline
Half the MSE-optimal bandwidth&0.332***&(0.193)&[0.008] \tabularnewline
Second-order polynomial&0.284***&(0.110)&[0.008] \tabularnewline
Uniform kernel&0.254***&(0.094)&[0.004] \tabularnewline
Epanechnikov kernel&0.268***&(0.104)&[0.005] \tabularnewline
\bottomrule \addlinespace[\belowrulesep]

\end{tabularx}
\\ \parbox{\linewidth}{\footnotesize \emph{Notes}: This table reports results for the exercises of Table \ref{tab:robustness_checks_chix_econ} for the general index.}
\end{table}
